Main trade-off
Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi
At 51 pounds, this is a two-person installation for many buyers.
Head-to-head
Choose Frigidaire for an adjusted cooling load near 12,000 BTU and a room around 550 square feet. Choose LG when 10,000 BTU is enough and the window opening is too narrow or low for the larger Frigidaire.
Before you choose
For “Cooling capacity”, the published figure is 20% higher for Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi, at 12,000 BTU compared with 10,000 BTU for LG 10,000 BTU Dual Inverter Smart Window Air Conditioner.
What this is based on
This changes the room cooling load the unit can reasonably cover. The percentage uses the lower published figure as the baseline.
Main trade-off
At 51 pounds, this is a two-person installation for many buyers.
Main trade-off
The deep cabinet and roughly 10,000 BTU chassis make installation more demanding.


Frigidaire FHWW125WE1 and LG LW1022IVSM compared by cooling capacity, window fit, compressor and controls.
The practical choice turns on cooling capacity and window fit, then on the constraints in your own setup.
Before you choose
For an illustrative 450-square-foot office with strong sun and three regular occupants, the simple sizing guide reaches 11,600 BTU. That puts Frigidaire’s 12,000 rating closer than LG’s 10,000. A shaded room with fewer occupants can lead to a different choice. Use the example to check your own assumptions rather than applying it to every 450-square-foot room.
ENERGY STAR starts at 10,000 BTU for 400 to 450 sq ft with an 8 ft ceiling. 10,000 × 1.10 + 600 = 11,600 BTU. This is an initial sizing screen.
Frigidaire needs a window at least 25 inches wide and 15.5 inches high. LG’s documented minimums are 22 and 13 inches. A narrow opening can therefore make LG installable even though Frigidaire has the better capacity for the room. If LG is undersized for the heat load, find another installation solution rather than forcing a larger unit into the frame.
Frigidaire minimum opening: 25 W by 15.5 H inches. LG minimum opening: 22 W by 13 H inches. Both maximum widths are 36 inches.
Winner by situation
For cooling capacity, Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi records “12,000 BTU per hour” and LG 10,000 BTU Dual Inverter Smart Window Air Conditioner records “10,000 BTU per hour”. This changes the room cooling load the unit can reasonably cover.
Start near 10,000 BTU before adjustments.
Use a documented voice-platform integration.
For window fit, Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi records “25 to 36 in sash. 15.5 in minimum opening” and LG 10,000 BTU Dual Inverter Smart Window Air Conditioner records “22 to 36 in sash. 13 in minimum opening”. Measure the available space and mounting points because this can be a hard fit constraint.
Filter by exact minimum opening height.
Both records list “Variable-speed inverter. 115V” for compressor and controls. Both records show the same result for “Compressor and controls”, so this row does not separate them.
What matters in practice
For “Cooling capacity”, the published figure is 20% higher for Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi, at 12,000 BTU compared with 10,000 BTU for LG 10,000 BTU Dual Inverter Smart Window Air Conditioner.
This changes the room cooling load the unit can reasonably cover. The percentage uses the lower published figure as the baseline.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
12,000 BTU at 115V with a 25 to 36-inch width range and 15.5-inch minimum opening height. Your calculated target is 8,000 BTU. It clears the target, but oversizing still needs a manual check.
10,000 BTU at 115V with a 22 to 36-inch width range and 13-inch minimum opening height. Your calculated target is 8,000 BTU. It clears the target, but oversizing still needs a manual check.
Cooling follows the current room-size method with adjustments for sun, extra people and kitchen heat. The opening check uses the stored manufacturer limits.

Frigidaire, FHWW125WE1
Cooling capacity is 12,000 BTU per hour. Its published combined energy efficiency ratio is 15.

LG, LW1022IVSM
Cooling capacity is 10,000 BTU per hour. Its published combined energy efficiency ratio is 15.
Meaningful differences
| What changes | Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi | LG 10,000 BTU Dual Inverter Smart Window Air Conditioner | Why it matters |
|---|---|---|---|
| Cooling capacity | 12,000 BTU per hour | 10,000 BTU per hour | This changes the room cooling load the unit can reasonably cover. |
| Window fit | 25 to 36 in sash. 15.5 in minimum opening | 22 to 36 in sash. 13 in minimum opening | Measure the available space and mounting points because this can be a hard fit constraint. |
| Compressor and controls | Variable-speed inverter. 115V | Variable-speed inverter. 115V | Both records show the same result for “Compressor and controls”, so this row does not separate them. |
What you give up
What matters in practice
Frigidaire provides 2,000 more BTU and covers 100 more square feet on the manufacturers' ratings.
Both use inverter compressors, include Wi-Fi, run on 115V power and publish a CEER of 15.
Frigidaire fits 25 to 36 inch windows with a 15.5 inch opening. LG starts at 22 inches wide and 13 inches high.
What the facts say
Useful conclusions from the current window air conditioners comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Frigidaire 12,000 BTU Inverter Window Room Air Conditioner with Wi-Fi |
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| LG 10,000 BTU Dual Inverter Smart Window Air Conditioner |
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Ready to choose?
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Cool a room around 550 square feet
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